// Copyright (c) 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "url/ipc/url_param_traits.h"

#include "url/gurl.h"

namespace IPC {

void ParamTraits<GURL>::GetSize(base::PickleSizer* s, const GURL& p)
{
    if (p.possibly_invalid_spec().length() > url::kMaxURLChars || !p.is_valid()) {
        GetParamSize(s, std::string());
        return;
    }

    GetParamSize(s, p.possibly_invalid_spec());
}

void ParamTraits<GURL>::Write(base::Pickle* m, const GURL& p)
{
    if (p.possibly_invalid_spec().length() > url::kMaxURLChars) {
        m->WriteString(std::string());
        return;
    }

    // Beware of print-parse inconsistency which would change an invalid
    // URL into a valid one. Ideally, the message would contain this flag
    // so that the read side could make the check, but performing it here
    // avoids changing the on-the-wire representation of such a fundamental
    // type as GURL. See https://crbug.com/166486 for additional work in
    // this area.
    if (!p.is_valid()) {
        m->WriteString(std::string());
        return;
    }

    m->WriteString(p.possibly_invalid_spec());
    // TODO(brettw) bug 684583: Add encoding for query params.
}

bool ParamTraits<GURL>::Read(const base::Pickle* m,
    base::PickleIterator* iter,
    GURL* p)
{
    std::string s;
    if (!iter->ReadString(&s) || s.length() > url::kMaxURLChars) {
        *p = GURL();
        return false;
    }
    *p = GURL(s);
    if (!s.empty() && !p->is_valid()) {
        *p = GURL();
        return false;
    }
    return true;
}

void ParamTraits<GURL>::Log(const GURL& p, std::string* l)
{
    l->append(p.spec());
}

} // namespace IPC
